Issue 6836. Using undeclared identifier in static context is now warning.

pkg/intl/lib/src/http_request_data_reader.dart

Index: pkg/intl/lib/src/http_request_data_reader.dart
diff --git a/pkg/intl/lib/src/http_request_data_reader.dart b/pkg/intl/lib/src/http_request_data_reader.dart
index b6d2e35ae56376bcf625e9227ceab4f4e043ba92..61c59d6e3e3d3cc973a130467eba925440fac994 100644
--- a/pkg/intl/lib/src/http_request_data_reader.dart
+++ b/pkg/intl/lib/src/http_request_data_reader.dart
@@ -23,7 +23,7 @@ class HTTPRequestDataReader implements LocaleDataReader {
     var source = '$url$locale.json';
     var request = new HttpRequest.get(
         source,
-        (request) => completer.complete(request.responseText));
+        (req) => completer.complete(req.responseText));
     return completer.future;
  }
 }